Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 76 + 41 by rounding each number to the nearest 10: ______
- Estimate 86 − 67 by rounding each number to the nearest 10: ______
- Estimate 89 − 62 by rounding each number to the nearest 10: ______
- Estimate 56 + 33 by rounding each number to the nearest 10: ______
- Estimate 43 + 21 by rounding each number to the nearest 10: ______
- Estimate 72 + 36 by rounding each number to the nearest 10: ______
- Estimate 45 + 27 by rounding each number to the nearest 10: ______
- Estimate 40 + 68 by rounding each number to the nearest 10: ______
- Estimate 53 + 56 by rounding each number to the nearest 10: ______
- Estimate 34 − 46 by rounding each number to the nearest 10: ______
- Estimate 44 − 53 by rounding each number to the nearest 10: ______
- Estimate 64 + 41 by rounding each number to the nearest 10: ______
- Estimate 29 + 39 by rounding each number to the nearest 10: ______
- Estimate 49 − 77 by rounding each number to the nearest 10: ______
- Estimate 70 − 80 by rounding each number to the nearest 10: ______
- Estimate 67 − 43 by rounding each number to the nearest 10: ______
- Estimate 31 + 69 by rounding each number to the nearest 10: ______
- Estimate 53 + 66 by rounding each number to the nearest 10: ______
- Estimate 29 + 63 by rounding each number to the nearest 10: ______
- Estimate 28 − 72 by rounding each number to the nearest 10: ______